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Ursa Helios GT 185W

  • Ursa Helios GT 185W


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   No returns | 5-year warranty
   Authorized dealer of this product


Ursa LED’s flagship and patented Helios fixture is the ultimate in grow light technology!

Both component and fixture level optimization allows the Helios GT to produce intense PPFD output. Their patented, high-powered, single source LEDs allows for extreme penetration through the canopy.

By doing so, the plant receives an abundant amount of light in the lower parts of the canopy, allowing for increased yields and production.

Delivering a broadband red spectrum of 80 nanometers (620nm-700nm), combined with a 450nm royal blue, the Helios GT series is optimized with one condition in mindmaximum performance in a grow tent setting or grow room.

The high dispersion rate from the wide angle optical lens technology allows maximum PPFD output to reach lower levels of the canopy through reflection inside the grow tent.

With penetration reaching deep into the canopy, no light is wasted with the added advantage of higher absorption rate and growth rate from lower branches.



  • 1200 PPFD at 12” From Canopy (320W fixture)
  • Broadband Red Spectrum of 80 nanometers (compared with 25nm industry standard)
  • Patented High Power Single Source LEDs from Flip Chip Opto
  • State-of-the-Art Phosphor Conversion Removes the Need for Inefficient Red LED Chips
  • Including UV-A and Far Red at the ends of the spectrum
  • Customizable Spectrum: Red/Blue or White Light (3000K, 4000K, 5000K)
  • Passively Cooled. No Moving Parts (Fans, Liquid Cooling)
  • Outperforms 300 Watt MH or HPS
  • Reduces Plant Stretching Up to 50% (increased yields)
  • IP-65 waterproof rated
  • 5-year manufacturer's warranty

Helios 185 Datasheet (PDF Download)

LED: Luna 200 - Flip Chip Opto COB
LED: Duet 200F - Flip Chip Opto COB


Spectrum Curves

Red/Blue Spectrum











Quality construction



Intense coverage





Model/SKU: Helios GT 185W/hgt185

Power output: 185 watts

MH/HPS equivalent: 300 watts

LEDs: 1 x 285 watt Flip Chip Opto COB Array; 50,000 hour lifespan

Spectrum: Red/Blue, 3000K, 4000K, or 5000K options available

Lens: 90 degree tempered glass

PAR: See PAR curve diagram below

Power Factor: 0.98 @ 115 VAC

Luminous Flux: 

  • 20324 lm @ CCT: 5000K, CRI: 70
  • 19714 lm @ CCT: 4000K, CRI: 70
  • 17885 lm @ CCT: 3000K, CRI: 80

    Light Efficacy:

    • 111.5 lm/W @ CCT: 5000K, CRI: 70
    • 108.2 lm/W @ CCT: 4000K, CRI: 70
    • 98.12 lm/W @ CCT: 3000K, CRI: 80

    Coverage area: 24" x 24" (4 sq ft)

    Thermal management: Passive cooling via a patented Cold-Forged Finned Heatsink

    Dimensions: 10.6" x 9.5" x 3.7"

    Operating temperature: -40˚C to 60˚C (-40˚F to 140˚F)

    Input voltage: 90-305 VAC; 3.9 A

    Operating current: 50-60Hz

    Product weight: 8.2 lbs

    Recommended height above plants: 14"

    Additional details: IP-65 rated

    Recommended for: Small to medium-sized grow operations; Indoors only

    Manufacturer's warranty: 5-year standard


    PPFD Curve


    Lux Distance Curve


    Light Distribution Curve


    Customer Reviews

    Based on 1 review
    BabaraC B. BabaraC
    Amazing Light

    I bought the red/blue and 3000K(actually received 3200K) 185W lights. Plants love hem both, but really love the white light. They turned away from my platinum p300's. Plan on getting more soon.

    Ursa Ursa Helios GT 185W Product #: 7990476614 Regular price: $380.00 $$380.00 Available from: Ursa New In stock
       No returns | 5-year warranty

       Authorized dealer of this product

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